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English definition of “apparatus”

apparatus

noun [U or C] (EQUIPMENT)    /ˌæp.əˈreɪ.təs/ US  /-ˈræt̬.əs/ (plural apparatuses)
a set of equipment or tools or a machine that is used for a particular purpose : a piece of apparatus The divers checked their breathing apparatus.Things needed for a task
(Definition of apparatus noun (EQUIPMENT) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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